4028 DC Axial Cooling Fan for Compact High-Airflow Cooling

The 4028 DC axial cooling fan is designed for equipment that needs stronger airflow in a small installation space. With a 40x40x28mm frame, this fan is suitable for compact systems where heat builds up quickly but the available mounting area is limited.

It is commonly used in servers, PSU units, network devices, communication equipment, industrial control modules, and small electronic systems that require continuous heat removal.

40x40x28mm Structure for Dense Equipment Layouts

Compared with thinner 40mm fans, the 28mm thickness gives this model better airflow support and stronger cooling performance. This makes it suitable for equipment with a dense internal layout, narrow airflow channels, or high heat concentration.

The compact square structure also makes the fan easier to install in small enclosures, power supply housings, server modules, and equipment panels.

Designed for Server and PSU Heat Dissipation

Servers and power supply units often operate under continuous load. Internal heat can affect component stability, power conversion efficiency, and long-term equipment performance.

This 4028 DC axial fan helps move hot air away from power components, circuit boards, transformers, and other heat-generating areas. It is a practical cooling option for small high-speed ventilation structures.

DC Brushless Motor for Stable Operation

The DC brushless motor design supports stable rotation and reliable cooling performance. It is suitable for equipment that requires long working hours and consistent airflow.

For compact devices with limited cooling space, a stable fan helps maintain internal air circulation and reduces the risk of overheating during continuous operation.

Dual Ball Bearing for Long Working Conditions

This model can use a dual ball bearing structure, which is suitable for applications requiring better durability and stable operation. Dual ball bearing fans are often selected for equipment that runs for long periods or works in higher-demand environments.

For servers, PSU units, communication devices, and industrial control products, bearing reliability is an important factor in fan selection.

FG and PWM Function Options

This fan can support FG and PWM functions according to project requirements. FG signal can help the system monitor fan speed, while PWM control allows the fan speed to be adjusted according to temperature or system load.

These functions are useful for intelligent cooling systems, especially in servers, power supplies, and equipment that needs fan status feedback or speed control.

Suitable Applications

Server cooling systems
PSU power supply units
Network devices
Communication equipment
Industrial control modules
Compact electronic devices
Small ventilation structures
Power conversion equipment
Testing instruments
OEM cooling fan projects

Cooling Support for Small High-Heat Devices

Small electronic equipment can generate concentrated heat in a very limited space. If airflow is not strong enough, internal temperature may rise quickly and affect the stability of components.

The 4028 DC axial fan provides a compact cooling solution for these situations. It helps create steady air exchange and supports better heat dissipation in equipment with limited internal space.

Customization for Different Equipment Designs

XEONfan technology can support customization according to different project needs. Available options include voltage, cable length, connector type, bearing type, speed setting, FG signal, PWM control, label, packaging, and airflow direction.

For customers developing server power modules, communication products, or compact electronic systems, xeonfan Technology can help match the fan specification according to installation space, airflow demand, noise target, and working environment.

XEONFAN Technology Cooling Fan Capability

XEONFAN Technology is a one-stop heat dissipation solution provider focusing on AC and DC brushless Axial fans, Blower fans, motors, and customized cooling solutions.

The company supports product selection, performance matching, and cooling fan customization for home appliances, communication equipment, computers, industrial equipment, new energy equipment, medical devices, and other applications.

FAQ

Q1: What type of fan is this?

A1: This is a 4028 DC axial cooling fan designed for compact equipment ventilation and heat dissipation.

Q2: What is the size of this fan?

A2: The fan size is 40x40x28mm.

Q3: What voltage options are available?

A3: This model can support 5V, 12V, and 24V options. The suitable voltage can be selected according to the equipment requirement.

Q4: Is this fan suitable for server cooling?

A4: Yes. The compact size and high airflow design make it suitable for servers, PSU units, network devices, and other small high-heat equipment.

Q5: What bearing type does this fan use?

A5: This model can use a dual ball bearing structure, which is suitable for long working hours and stable operation.

Q6: What are FG and PWM functions used for?

A6: FG is used for fan speed signal feedback, while PWM is used for speed control. These functions are useful for equipment that needs fan monitoring or intelligent cooling adjustment.

Q7: Where can this 4028 DC Fan be used?

A7: It can be used in servers, PSU units, communication equipment, network devices, industrial control modules, compact electronics, and small ventilation systems.

Q8: Can XEONFAN Technology customize this fan?

A8: Yes. XEONFAN Technology can customize voltage, connector, cable length, bearing type, speed, FG/PWM functions, label, packaging, and airflow direction according to project requirements.